Acetylene-gas generator.



V. PINGRET.

AGETYLENE GAS GENERATOR.

APPLICATION FILED 1350.13, 1909.

Patented Sept. 19M.

INVENTUFQ VV'ITN 5:5555

2tA within' the UmuD STATES Pagani* oFFIcE.'

vIo'ron r'INcnEr, or CLEVELAND, oHIo.

acE'rYLENE-ees enNEitA'roR.

Be it known that I, VICTOR PINGRn'r, al,

citizen oi' the 'Republico Brazil, residingll temporarily at Cleveland, in the county ofi 5 Cuyahoga and State cI Ohio, have invented appliances, and has parti-cular reference to apparatus designed for the production of acetylenegas from calcium carbid..

Thel paramount vobject of the yimprove- '.ment-s which constitute the `subjectmatterl of this appli-cation` for patent is :'-to provide an Iapparat-us for the generation of acety lene gesunder pressure, lall handling of thev carbid from which. the gas is produced, subsequent to the placing cf the material receiving hopper, ybeing eliminated. f i j Other objects ofzxpis invention are v:-to `provide 'meansfor i e'generation of acety- Vlene-gas Without of the gals; to furnish an laq'irparatus for the purpose stated. inV

which the admission of air to the gas 'will be prevented, Ithus insuring the delivery of apure, uninixed product, and 'to produce an.

appliance in which the 4generation ofgas 3o will be continnous, this result being brought about by the -special arrangement' of the parts which .will permit of the thorough removal of theresidue from the used carbid, without.v interruption to the generating' process.

Among otherl important fea-tures of this invention are the automatic action of the feeding pump, which will continue to convey measured charges of carbid to the gen# 40 erating tank, so long as the feed hopper is kept properly supplied with the gas producing material; 'and in addition, the fact that the chambers of the apparatus are gas tight and remain unopened during the cleaning procedure, thus. permitting the continuous production of: gas to be carried on with per,- fect safety..A y

I accomplish the desired vresults by the employment of the apparatus illustrated in 50. the accompanying drawing which formsav part of this application.

Figure l represents a lon `tudinal .vertical median section, some 'of t e parts being shown infull, and Fig. .2 is an enlarged detail' view of the valve operating mechanism' Specification of Letters :Patent Application f iled December 13,1909. Serial Nc.` 532,846.

' able :foundationv 3.

' Patented Sept. 29, 1914.

than al right angles t0 Fig. 1 of um drawing.

,l Referring specifically' to the construction as disclosed in the drawing, the numeral 1 indicates a' cylindrical generatingv cylinder vor tank, 'arranged horizontally7 and furnished with supports 2.1'esting upon a -suiti The ends of the cylindei` or tank are closed by threaded caps 4, 5. The rear cap 4 isfurnishedwith a water gag-, or indicator 6, provided .with a minimum index 7, which marks the lowest level to which the watermay .be allowedtonr'ecede. ,Projecting through the side walls near the upper. part of the tank are bolts 8 which support a horizontal -baile plate 9, furnished with numerous holeslO. y 4

The front cap 5 is provided with a central aperture surrounded by an inwardly pro jecting collar 11. Applied to the 4outer 'farce oI the said cap 5, is a cylindrical valve casing 1:2 having a flange 13, secured to the cap vby bolts or rivets 14. The chamber of the casing 12 is in alinementfwith the .cen-

tral aperture of the cap 5, a-nd .within the vcontinuous' bore thus formed, 1s arranged a valve plunger 15, which is adapted to be rotated axially aswell as moved longitudinally in said bore. The inner end of the vplunger is enlarged to form a valve head 16. p The shoulder 17 formed by the enlargenient engages-a similarly shaped seat 18 in the endof the collar to form a gas-tight joint. The outer end .of lthe casing 12 is closed with the exception of a central aper- "ture for the passage of the rod 19 which is rigidly -iixed to the plunger and 'supplied -at its outer end with a hand wheel 20, and

surrounding the rod, .between the' wheel and the casing end, is a coiled spring 2].. which normally urges the valve 16 against its seat. The plunger 15 is provided with a recess 22 in one side, .and when t-he valve is in the position shown in the drawingfthis recess registers with the 'mouth'of a hopper 'end extending below the baille plate 9 and its upper end communicating with the 'interior of a pump barrel or cylinder 25 extending parallel with the said tank,and c0- formed with the casing 12 and whenthe extensive in length therewith, The said cylinder or barrel is supported in part by the said pipe 24 and also by a second smaller pipe 6 forming a gas pas age hetween the front end of the cylinder l and the pump cylinder. Upon the upper side of the said cylinder 25 and communicating with its interior is a comparatively shortI pipe 27, flaring above to -forni a feed hopper S28, fitted with a gas tight cover 29. The side of this hopper is tapped for a gas pipe 30, which leads tro-a suitable gas holder (not shown) placed at any convenient point.

. The ends of the barrel or cylinder are closed by threaded caps 3l, 32, the rear cap 3l being made much longer than the other, so that it can be screwed out or in to vary the length of the barrel bore, for a purpose that will' be hereinafter' explained. The front cap 32 has a threaded opening' to reeeive the end of an outlet pipe 33, bent., es.

shown, to elevate the outlet above the pump, and furnished with a reduction Valve 3. The bore of the barrel is divided into ev frontchaniber', and e rear chamber 36, by a transverse partition 37, having a coniparatively large aperture 38. ,Secured to the cylinder 25 and communicating with said front chamber 35 is a valvecasing' 75 having a spring-held safety Valve Z5 and the cylinder is also supplied with a pressure gage 77.

Arranged in the rear chamber is a coinpound feed piston comprising a fore piston 39, and a rear piston 40, separated by an interval lll, and rigidly joined by a rod connection 42. Both pistons are furnished with suitable packing rings 43 to insure gastight fit in the barrel, andv lubricating niaterial is supplied as required through an oil hole le in 'the cylinder Wall. The connected pistons are operated by e rod 45, which is attached to the rear pistonand projects through a central aperture in the cap 3l. Surrounding this rod between the rear piston and the said cap is a motor spring 46, of suitable dimensions to force back the piston when the pressure within the barrel 25 has fallen to a certain predetermined point, as Will bemore fully explained in connection with the operation of. the machine. This spring is an important element in my invention, and provision is made for the necessary adjustment of the tension to correspond with variation in the gas pressure by.

the aforesaid elongation of the rear cap 3l., which forms the abutment foi-one end of said spring. To liinit tie backward nievement of the piston, a stop 47 is inserted. through the Wall of the cylinder. The an- .nular chamber all betueenthe pistonslis nori nially directly above the bore of the p' )e 62% when there is no gas pressure, and constii tutes a loading chamber, its capacity h ay'ing' a predetermined relation to the gas aree of Limbes the machine, wwhich. comprises the ciizsvrnher or compartment i8 above the baille plate, the 'liront chamber 35 of the pump cylinder and the here of the connecting' pipe 2G, all of these spaces beingl filled Willi asbestos Wool 49 satu 1ated with acetone, preferably. lx tending; transversely in the discharge pipe Q7 ofthe leed hopper 2S is a rock Ahaft 50, carrying iioats or Wings 51 adapted to uglitate the contents of the hopper when the shaft rocked, to facilitate the descent of the said contents into the loading chamber Lll. The said shaft 50 is operated from the piston rod 45, by :means o? an arm fixed thereon, und connected to a rock :irin on a projecting end of the Shaft by :i rod fil. The said rod slides loosely inI :ii/1 cyr 55 .in 'lhe end o'lE the :irin 59, a yielding; connection being made thi-ou, i the medium oli a coiled springr 56, embracing the rod, und eiigrauine, o fixed collar 5T thereon and the arni Srl. lt will be understood that this arrangement will permit the arm to travel the full Aextent of the piston slroliie ",Jhile the rock shaft arm and rod il are. moved onl o. trac tion o the distance. i

linsuediately below the pipe :24. within the tanl; l, is arranged o sluiting' hopper 58, furnished with numerous perforations 59 in itsWulls, and provided internally with a series oit superposed horizontally arranged 'wire screens GO, varying); in the size oil: their mesh. That portion of the pipe 24; extending; below the baille plate l is furnished with apertures 2LP to aid the free circulation of Water and arranged in the hopper i1nnie diately beneath the outlet of said pipe is a conical imperforate. oelector G0, supported in the center of a screen 60b consisting; of :i plate haring* tl c .torni of an inverted frustuin olf a cone, and provided. with comparutirely large apertures G0. The purpose ot said deliector 601 is to distrilmtc the carbid evenly upon the screens near the sides oi the hopper and thus, cause the evolved gas to spread out :Freely beneath the baille plate and prevent it from ascending' directly into the mouth. of the said pipe 24. iflze said hopper 58 connects at its lower end With a receiving pipe 6l, projecting; through an aperture in the cylinder bottoni Wall and extending vertically downward. This pipe (il forms a residue choinbcr and has two `ente valves (S2, G3, arranged at the upper and lowenends of the chamber and operated by hund iliheels 641-. .ein air or vent pipe 65 connects with the receiving pipe (il immediately below the upper Valve 62. and is furnished `with u, vent. or air valve 66.

lust above .the lower valve (i3, a water pipe (537' coininunicutes with seid pipe (il, and this also has a coi'itrollingf valve (RS. The valves 56 and ('38 are .spcctively hn-4 nishcd with .sprockets G9, 70, over which passes an, operating chain 7l. .By this deviceit will be seen that the connected valves A must move in unison, thus preventing the turning of either without affecting the other, and the valves are relatively arranged "so that they are both always in thelsame operative position. The sprockets 69, 70, are arranged adjacent'the stems 72 of the valves 62 and 63, and upon each of the said stems is mounted a finger or pawl 73. These pawls are connected to their respe/ctive stems -by hinge joints 74, which permit them to yield in one direction butwrender them rigid in the other.. The joint of the finger correspending with the upper valve 62 is so arranged that when this valve is onened the said finger. -will engage the sproc et chain and move the latter in such a direction as te close the air and Water valves 66 and 68, and since the said finger yields in the opposite direction, the sprockets are not aiiected by the closure of the said valve 62. The action of the lower valve 63 is contrary to that just described; that is, when this valve, is openedits finger will engage the sprocket chain and move it insuch a direction as to open the air andwater lvalves 66 and 68, while closing this Nalve 62 does notk affect the sprocket chain and the valves 66 and 68 -wili remain open so `far as the closing actibn of this valve is concerned. Stated more c011- cisely, opening the upper valve 62 closes the air and Water valves, While opening the valve 63 opens the air and water valves. N o effect is had upon the Water and air valves through the closure of the said valves 62 and 63. 5

The operation of my improved automatic gas generator is as follows The tank 1 is filled with Water up'to the bailie plate, and the asbestos inthe space above the fb'ailie plate aswell as the pipe 26 and the cham- The double piston will ,be held by the motor spring in.

ber 36 saturated with acetone.

its extended position, with the loading chamber 41 directly over the pipe` 24. The feed hopper 28 is then filled with carbid and the cover 29 closed down tightly. "The valve 62 should be open, while the corresponding valve 63 and the air and Water valves 66 and 68 will be closed, thus leaving a vertical passage'open from the barrel 25 through the pipe 24, the slaking hopper 58 and the residue chamber 61 to the closed valve '63. A charge of carbid is placed in the hopper 23, and the operator then seizes the stem of the plunger and pushes it into the tank until the pocket 22 is beyond the valve seat'18. He then gives the plunger a.

half turn by means of the hand wheel 20 quantity of carbid has been deposited -in the tank. As soon as the gasv eliminated by the action of the Water in the tank upon the carbid thus introduced has reached a suicientl degree of pressure the piston in the pump cylinder 25 will be moved thereb 70 until it is arrested by the stop 47. The loa ing chamber 41 is thus brought directly'be` neath the mainI `feed hopper 28, and a portion of the carbid therein will fall by gravity into said chamber, this action bein assisted 75 by the agitation of the wings 51. he feed piston Will remain in this extended position until the pressure of the gas in frontl of it is reduced to a sufficient extent to allow the` -spring 46 to expand. This will then drive au the piston forward'to its initial position over thefend of the pipe 24 and when the cham# ber 41 has reached this point its contents will fall throlgh said pipeirto the hopper 58 where it wi be intercefitled-by the' screens y815l 60,.and ex osed to the sla 'ng action of the Water. hen the hydrating action is com-v pleted, the residue .will pass through the` meshes of said screens and be deposited lat, |`the lower end of the receiving pipe 61. The igas 'eliminated from each fresh charge of icarbid willincrease the pressure in the tank 1 1, and force the piston of the pump back again to the loading position shown in theI drawing, Where it vwill receive another 95 change from the feed hop er. This pro-i cedu e willbe automatical y continued so longy s the calcium carbid'is supplied to the feed .hopper in sufficient quantities. The chamber 41 will be -illed with gas after it 100 dumps its load and when it returns to the feed hopper this gas'will be displaced by the fresh charge of carbid and expand with in the said hopper, from which it is conn ducted to a holder by means of the pipe 30.

It will be necessary from time to time to remove the Waste .material which'has accumulated'within the residue chamber 61. This is done withoutdisturbing the automatic feed in'the following manner :-The 110 upper main valve 62 is rst closed, shutting off communication between the receiving pipe or residue chamber and the hydrating tank, but without a'ecting the Water and vent valves. The valve 63 is then opened, 115 the air and water valves being at the same time automaticallyopened. and the chain-y ber 61 is then emptied, cleaned and thoroughly Washed out with Water. When the cleansing process is completed the valve 63 is 120 closed, and the pipe or chamber 61 will completely fill with water, since the Water and vent valves are still open. When the said chamber is full of water, the upper valve 62 is` opened', the act of opening auto 125 matically closing the Water and air valves.

Having thus described my invention what I claim as' new, is

1. In an acetylene gas machine, a generatingtank having gas and water compartments, a feed cylinder communicating with said tank, a hopper communicating' with said cylinder, areciprocating piston mounted in said cylinder', means for conducting gas from the generating tank to said cylinder, said means supplied with an absorbent material, a residue chamber communicating with the generating tank, and means in said .chamber controlling the admission thereto and discharge there-from of residue received from the generating tank.

2. ln an apparatus for generating acetylene gas, a'generating tank, a baiiie plate dividing the interior of the tank into gas and Water compartments, an absorbent material in the gas compartment, a 'feed cylinder communicating with saildtank, a hopper for the cylinder, a piston in; said cylinder, a loading chamber in sziid piston, a slaking hopper' in said tank, and a residue chamber communicating With said hopper.

3. In an apparatus-forgenerating acetylene tank having a Water compartment and a gas compartment therein separated by a screen, an absorbent arranged in said gas compartment, cylinder communicating with the gas and Water compartments oi said generating tank, said cylinder having a gas compartment with an absorbent therein, an outlet communicating with said gas compartment, and a piston chamber, a reciprd eating chambered piston arranged in said chamber, said piston adapted to be operated by the gas-pressure in said cylinder, means for admitting a supply of gas generating material to said piston chamber, means Within said tank for screening the generating material, v,and means for discharging Waste' material from said tank.

In an apparatus for generating acetylene gas, the combination with a generating tank, a perforated partition in said tank, a cylinder 4connected With the tank, a-piston in said cylinder, a loading chamber in the piston, a spring adapted to project the piston, a hopper arranged to register ywith the said chamber when the piston is retracted, absorbent material arranged above the said partition, a discharge chamber Jfor the tank, and valves for the discharge chamber.

5. In an apparatus forgenerating acetylene gas, the combination of ay generating l, the combination-o1 a generating`l` tank, a baille plate in the tank, a discharge pipe for said tank, means for introducing an initial. charge of gas producing material into the tank. a piston cylinder communicating with the tank, chambered piston in said cylinder, and a ieed hopper adapted to register with the said piston chamber when the piston is at one end of its stroke.

G. in an apparatus for generating acetylene gas, the combination ota generating tank, a feed pump comprising a. cylinder, a pipe connecting the cylinder and tank, a perforated sinking hopper arranged within the tank beneath thesaid pipe, a series ot' screens in the hopper, and a discharge chamber communicating with said hopper.

ln an apparatus for generating acetylene gas, the combination with a generating tank, or' a feed pump comprising a cylinder, a piston in .said cylinder, a loading chamber in the piston, a spring adapted 'to extend the piston, a hopper for the cylinder, an

l ag tator in thehopper, and operative connection between the agitator andthe piston.

S. in an apparatus for the purpose specified, the combination with u. generating tank, of a feed pump for the gas generating material, said pump comprising a cylinder communicating with the tank, an apertured trans\ partition dividing the cylinder into two compartments, an absorbent ma terial in one of said compartments, a yieldinlgucpian'lbered piston in the other coi'uliartment, a feed hopper, a cover for the hopper, a pipecommunicating with the interior of the hopper, a rock shaft in the hopper, arms on said shaft, and operative means connecting the shaft with the said piston.

Q. lo, an apparatus for generating :ieety4 iene pas, the 'combination of a generating tank, a leed pump, a' pipe connecting the said pump ivith the tank, a perforated slaking hopper arranged within the tank beneath said pipe, a deflector below the outlet of the pipe, screens in the hopper and a dis charge chamber communicating with the hopper.

ln testimony whereof I a'liix my signature in the presence of two witnesses.

VIC/TGR PIN irRET illitnesses t WVM. C. MANGAN, C. B. Fnrrcrr. 

